Home / 133,069.74-183,629.24-72,628.65

Finding the Fourth Proportional to 133,069.74, 183,629.24 and 72,628.65

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Solution

The fourth proportional to 133,069.74, 183,629.24 and 72,628.65 is: 100,223.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,069.74 : 183,629.24 = 72,628.65 : x
  2. Step 2: Convert to fraction form
    133,069.74/183,629.24 = 72,628.65/x
  3. Step 3: Cross multiply
    133,069.74x = 183,629.24 × 72,628.65
  4. Step 4: Simplify right side
    133,069.74x = 13,336,743,438.58
  5. Step 5: Solve for x
    x = 13,336,743,438.58/133,069.74
  6. Step 6: Final answer
    x = 100,223.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.